BCD Watch

BCD Changes Report

Summary of BCD changes from through 🔗

Browser Support Changes: +0, -0

BCD Metadata Changes: 460

Show all 460 changes

Note: The following represent changes to BCD metadata keys in the reported time period. Keys are not implementations, and they don't represent commitments toward implementation, etc. A new key occurring is perhaps a signal that some implementer was serious enough to add the key. Many of the features that are 'removed' are usually just 'moved' or 'renamed', but we don't have great ways to highlight that.

Backfilled entries (231)

The entries in this section saw support information change since the report on Monday, 20 July 2026, but all the supported browser versions given were more than a couple of months old. Typically, these are cases of support information being updated long after the support actually landed in a browser, but nobody ever updated the BCD entry.

API

  1. api ➞ DeviceMotionEvent ➞ requestPermission_static
    Backfilled for Chrome  ➞  1 of 3 engines
  2. api ➞ DeviceOrientationEvent ➞ requestPermission_static
    Backfilled for Chrome  ➞  1 of 3 engines
  3. api ➞ HTMLTemplateElement ➞ shadowRootSlotAssignment
    Backfilled for Chrome  ➞  3 of 3 engines

CSS

  1. css ➞ types ➞ basic-shape ➞ circle ➞ closest-corner Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  2. css ➞ types ➞ basic-shape ➞ circle ➞ farthest-corner Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  3. css ➞ types ➞ basic-shape ➞ ellipse ➞ closest-corner Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  4. css ➞ types ➞ basic-shape ➞ ellipse ➞ farthest-corner Spec link
    Backfilled for Firefox  ➞  2 of 3 engines

HTTP

  1. http ➞ headers ➞ Permissions-Policy ➞ language-model Spec link
    Backfilled for Chrome  ➞  1 of 3 engines

WEBASSEMBLY

  1. webassembly ➞ definitions ➞ data Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  2. webassembly ➞ definitions ➞ elem Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  3. webassembly ➞ definitions ➞ func
    Backfilled for Firefox  ➞  3 of 3 engines
  4. webassembly ➞ definitions ➞ table
    Backfilled for Firefox  ➞  3 of 3 engines
  5. webassembly ➞ definitions ➞ tag
    Backfilled for Firefox  ➞  3 of 3 engines
  6. webassembly ➞ instructions ➞ abs
    Backfilled for Firefox  ➞  3 of 3 engines
  7. webassembly ➞ instructions ➞ abs ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  8. webassembly ➞ instructions ➞ add
    Backfilled for Firefox  ➞  3 of 3 engines
  9. webassembly ➞ instructions ➞ add ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  10. webassembly ➞ instructions ➞ add_sat_s
    Backfilled for Firefox  ➞  3 of 3 engines
  11. webassembly ➞ instructions ➞ add_sat_u
    Backfilled for Firefox  ➞  3 of 3 engines
  12. webassembly ➞ instructions ➞ all_true
    Backfilled for Firefox  ➞  3 of 3 engines
  13. webassembly ➞ instructions ➞ and
    Backfilled for Firefox  ➞  3 of 3 engines
  14. webassembly ➞ instructions ➞ and ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  15. webassembly ➞ instructions ➞ andnot
    Backfilled for Firefox  ➞  3 of 3 engines
  16. webassembly ➞ instructions ➞ any_true
    Backfilled for Firefox  ➞  3 of 3 engines
  17. webassembly ➞ instructions ➞ avgr_u
    Backfilled for Firefox  ➞  3 of 3 engines
  18. webassembly ➞ instructions ➞ bitmask
    Backfilled for Firefox  ➞  3 of 3 engines
  19. webassembly ➞ instructions ➞ bitselect
    Backfilled for Firefox  ➞  3 of 3 engines
  20. webassembly ➞ instructions ➞ ceil
    Backfilled for Firefox  ➞  3 of 3 engines
  21. webassembly ➞ instructions ➞ ceil ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  22. webassembly ➞ instructions ➞ clz
    Backfilled for Firefox  ➞  3 of 3 engines
  23. webassembly ➞ instructions ➞ const
    Backfilled for Firefox  ➞  3 of 3 engines
  24. webassembly ➞ instructions ➞ const ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  25. webassembly ➞ instructions ➞ convert
    Backfilled for Firefox  ➞  3 of 3 engines
  26. webassembly ➞ instructions ➞ convert_i32x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  27. webassembly ➞ instructions ➞ convert_i32x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  28. webassembly ➞ instructions ➞ convert_low_i32x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  29. webassembly ➞ instructions ➞ convert_low_i32x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  30. webassembly ➞ instructions ➞ copysign
    Backfilled for Firefox  ➞  3 of 3 engines
  31. webassembly ➞ instructions ➞ ctz
    Backfilled for Firefox  ➞  3 of 3 engines
  32. webassembly ➞ instructions ➞ data_drop Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  33. webassembly ➞ instructions ➞ demote
    Backfilled for Firefox  ➞  3 of 3 engines
  34. webassembly ➞ instructions ➞ demote_f64x2_zero
    Backfilled for Firefox  ➞  3 of 3 engines
  35. webassembly ➞ instructions ➞ div
    Backfilled for Firefox  ➞  3 of 3 engines
  36. webassembly ➞ instructions ➞ div ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  37. webassembly ➞ instructions ➞ dot_i16x8_s
    Backfilled for Firefox  ➞  3 of 3 engines
  38. webassembly ➞ instructions ➞ elem_drop Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  39. webassembly ➞ instructions ➞ eq
    Backfilled for Firefox  ➞  3 of 3 engines
  40. webassembly ➞ instructions ➞ eq ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  41. webassembly ➞ instructions ➞ eqz
    Backfilled for Firefox  ➞  3 of 3 engines
  42. webassembly ➞ instructions ➞ extadd_pairwise_i16x8_s
    Backfilled for Firefox  ➞  3 of 3 engines
  43. webassembly ➞ instructions ➞ extadd_pairwise_i16x8_u
    Backfilled for Firefox  ➞  3 of 3 engines
  44. webassembly ➞ instructions ➞ extadd_pairwise_i8x16_s
    Backfilled for Firefox  ➞  3 of 3 engines
  45. webassembly ➞ instructions ➞ extadd_pairwise_i8x16_u
    Backfilled for Firefox  ➞  3 of 3 engines
  46. webassembly ➞ instructions ➞ extend
    Backfilled for Firefox  ➞  3 of 3 engines
  47. webassembly ➞ instructions ➞ extend16_s Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  48. webassembly ➞ instructions ➞ extend32_s Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  49. webassembly ➞ instructions ➞ extend8_s Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  50. webassembly ➞ instructions ➞ extend_high_i16x8_s
    Backfilled for Firefox  ➞  3 of 3 engines
  51. webassembly ➞ instructions ➞ extend_high_i16x8_u
    Backfilled for Firefox  ➞  3 of 3 engines
  52. webassembly ➞ instructions ➞ extend_high_i32x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  53. webassembly ➞ instructions ➞ extend_high_i32x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  54. webassembly ➞ instructions ➞ extend_high_i8x16_s
    Backfilled for Firefox  ➞  3 of 3 engines
  55. webassembly ➞ instructions ➞ extend_high_i8x16_u
    Backfilled for Firefox  ➞  3 of 3 engines
  56. webassembly ➞ instructions ➞ extend_low_i16x8_s
    Backfilled for Firefox  ➞  3 of 3 engines
  57. webassembly ➞ instructions ➞ extend_low_i16x8_u
    Backfilled for Firefox  ➞  3 of 3 engines
  58. webassembly ➞ instructions ➞ extend_low_i32x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  59. webassembly ➞ instructions ➞ extend_low_i32x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  60. webassembly ➞ instructions ➞ extend_low_i8x16_s
    Backfilled for Firefox  ➞  3 of 3 engines
  61. webassembly ➞ instructions ➞ extend_low_i8x16_u
    Backfilled for Firefox  ➞  3 of 3 engines
  62. webassembly ➞ instructions ➞ extmul_high_i16x8_s
    Backfilled for Firefox  ➞  3 of 3 engines
  63. webassembly ➞ instructions ➞ extmul_high_i16x8_u
    Backfilled for Firefox  ➞  3 of 3 engines
  64. webassembly ➞ instructions ➞ extmul_high_i32x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  65. webassembly ➞ instructions ➞ extmul_high_i32x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  66. webassembly ➞ instructions ➞ extmul_high_i8x16_s
    Backfilled for Firefox  ➞  3 of 3 engines
  67. webassembly ➞ instructions ➞ extmul_high_i8x16_u
    Backfilled for Firefox  ➞  3 of 3 engines
  68. webassembly ➞ instructions ➞ extmul_low_i16x8_s
    Backfilled for Firefox  ➞  3 of 3 engines
  69. webassembly ➞ instructions ➞ extmul_low_i16x8_u
    Backfilled for Firefox  ➞  3 of 3 engines
  70. webassembly ➞ instructions ➞ extmul_low_i32x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  71. webassembly ➞ instructions ➞ extmul_low_i32x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  72. webassembly ➞ instructions ➞ extmul_low_i8x16_s
    Backfilled for Firefox  ➞  3 of 3 engines
  73. webassembly ➞ instructions ➞ extmul_low_i8x16_u
    Backfilled for Firefox  ➞  3 of 3 engines
  74. webassembly ➞ instructions ➞ extract_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  75. webassembly ➞ instructions ➞ extract_lane_s
    Backfilled for Firefox  ➞  3 of 3 engines
  76. webassembly ➞ instructions ➞ extract_lane_u
    Backfilled for Firefox  ➞  3 of 3 engines
  77. webassembly ➞ instructions ➞ floor
    Backfilled for Firefox  ➞  3 of 3 engines
  78. webassembly ➞ instructions ➞ floor ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  79. webassembly ➞ instructions ➞ ge
    Backfilled for Firefox  ➞  3 of 3 engines
  80. webassembly ➞ instructions ➞ ge ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  81. webassembly ➞ instructions ➞ ge_s
    Backfilled for Firefox  ➞  3 of 3 engines
  82. webassembly ➞ instructions ➞ ge_s ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  83. webassembly ➞ instructions ➞ ge_u
    Backfilled for Firefox  ➞  3 of 3 engines
  84. webassembly ➞ instructions ➞ ge_u ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  85. webassembly ➞ instructions ➞ gt
    Backfilled for Firefox  ➞  3 of 3 engines
  86. webassembly ➞ instructions ➞ gt ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  87. webassembly ➞ instructions ➞ gt_s
    Backfilled for Firefox  ➞  3 of 3 engines
  88. webassembly ➞ instructions ➞ gt_s ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  89. webassembly ➞ instructions ➞ gt_u
    Backfilled for Firefox  ➞  3 of 3 engines
  90. webassembly ➞ instructions ➞ gt_u ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  91. webassembly ➞ instructions ➞ le
    Backfilled for Firefox  ➞  3 of 3 engines
  92. webassembly ➞ instructions ➞ le ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  93. webassembly ➞ instructions ➞ le_s
    Backfilled for Firefox  ➞  3 of 3 engines
  94. webassembly ➞ instructions ➞ le_s ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  95. webassembly ➞ instructions ➞ le_u
    Backfilled for Firefox  ➞  3 of 3 engines
  96. webassembly ➞ instructions ➞ le_u ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  97. webassembly ➞ instructions ➞ load
    Backfilled for Firefox  ➞  3 of 3 engines
  98. webassembly ➞ instructions ➞ load16_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  99. webassembly ➞ instructions ➞ load16_splat
    Backfilled for Firefox  ➞  3 of 3 engines
  100. webassembly ➞ instructions ➞ load16x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  101. webassembly ➞ instructions ➞ load16x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  102. webassembly ➞ instructions ➞ load32_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  103. webassembly ➞ instructions ➞ load32_splat
    Backfilled for Firefox  ➞  3 of 3 engines
  104. webassembly ➞ instructions ➞ load32_zero
    Backfilled for Firefox  ➞  3 of 3 engines
  105. webassembly ➞ instructions ➞ load32x2_s
    Backfilled for Firefox  ➞  3 of 3 engines
  106. webassembly ➞ instructions ➞ load32x2_u
    Backfilled for Firefox  ➞  3 of 3 engines
  107. webassembly ➞ instructions ➞ load64_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  108. webassembly ➞ instructions ➞ load64_splat
    Backfilled for Firefox  ➞  3 of 3 engines
  109. webassembly ➞ instructions ➞ load64_zero
    Backfilled for Firefox  ➞  3 of 3 engines
  110. webassembly ➞ instructions ➞ load8_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  111. webassembly ➞ instructions ➞ load8_splat
    Backfilled for Firefox  ➞  3 of 3 engines
  112. webassembly ➞ instructions ➞ load8x8_s
    Backfilled for Firefox  ➞  3 of 3 engines
  113. webassembly ➞ instructions ➞ load8x8_u
    Backfilled for Firefox  ➞  3 of 3 engines
  114. webassembly ➞ instructions ➞ local
    Backfilled for Firefox  ➞  3 of 3 engines
  115. webassembly ➞ instructions ➞ local_get
    Backfilled for Firefox  ➞  3 of 3 engines
  116. webassembly ➞ instructions ➞ local_set
    Backfilled for Firefox  ➞  3 of 3 engines
  117. webassembly ➞ instructions ➞ local_tee
    Backfilled for Firefox  ➞  3 of 3 engines
  118. webassembly ➞ instructions ➞ lt
    Backfilled for Firefox  ➞  3 of 3 engines
  119. webassembly ➞ instructions ➞ lt ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  120. webassembly ➞ instructions ➞ lt_s
    Backfilled for Firefox  ➞  3 of 3 engines
  121. webassembly ➞ instructions ➞ lt_s ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  122. webassembly ➞ instructions ➞ lt_u
    Backfilled for Firefox  ➞  3 of 3 engines
  123. webassembly ➞ instructions ➞ lt_u ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  124. webassembly ➞ instructions ➞ max
    Backfilled for Firefox  ➞  3 of 3 engines
  125. webassembly ➞ instructions ➞ max ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  126. webassembly ➞ instructions ➞ max_s
    Backfilled for Firefox  ➞  3 of 3 engines
  127. webassembly ➞ instructions ➞ max_u
    Backfilled for Firefox  ➞  3 of 3 engines
  128. webassembly ➞ instructions ➞ memory_copy
    Backfilled for Firefox  ➞  3 of 3 engines
  129. webassembly ➞ instructions ➞ memory_copy ➞ multi_memory Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  130. webassembly ➞ instructions ➞ memory_fill
    Backfilled for Firefox  ➞  3 of 3 engines
  131. webassembly ➞ instructions ➞ memory_fill ➞ multi_memory Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  132. webassembly ➞ instructions ➞ memory_grow
    Backfilled for Firefox  ➞  3 of 3 engines
  133. webassembly ➞ instructions ➞ memory_grow ➞ multi_memory Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  134. webassembly ➞ instructions ➞ memory_init Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  135. webassembly ➞ instructions ➞ memory_init ➞ multi_memory Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  136. webassembly ➞ instructions ➞ memory_load
    Backfilled for Firefox  ➞  3 of 3 engines
  137. webassembly ➞ instructions ➞ memory_load ➞ multi_memory Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  138. webassembly ➞ instructions ➞ memory_size
    Backfilled for Firefox  ➞  3 of 3 engines
  139. webassembly ➞ instructions ➞ memory_size ➞ multi_memory Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  140. webassembly ➞ instructions ➞ memory_store
    Backfilled for Firefox  ➞  3 of 3 engines
  141. webassembly ➞ instructions ➞ memory_store ➞ multi_memory Spec link
    Backfilled for Firefox  ➞  2 of 3 engines
  142. webassembly ➞ instructions ➞ min
    Backfilled for Firefox  ➞  3 of 3 engines
  143. webassembly ➞ instructions ➞ min ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  144. webassembly ➞ instructions ➞ min_s
    Backfilled for Firefox  ➞  3 of 3 engines
  145. webassembly ➞ instructions ➞ min_u
    Backfilled for Firefox  ➞  3 of 3 engines
  146. webassembly ➞ instructions ➞ mul
    Backfilled for Firefox  ➞  3 of 3 engines
  147. webassembly ➞ instructions ➞ mul ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  148. webassembly ➞ instructions ➞ narrow_i16x8_s
    Backfilled for Firefox  ➞  3 of 3 engines
  149. webassembly ➞ instructions ➞ narrow_i16x8_u
    Backfilled for Firefox  ➞  3 of 3 engines
  150. webassembly ➞ instructions ➞ narrow_i32x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  151. webassembly ➞ instructions ➞ narrow_i32x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  152. webassembly ➞ instructions ➞ ne
    Backfilled for Firefox  ➞  3 of 3 engines
  153. webassembly ➞ instructions ➞ ne ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  154. webassembly ➞ instructions ➞ nearest
    Backfilled for Firefox  ➞  3 of 3 engines
  155. webassembly ➞ instructions ➞ nearest ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  156. webassembly ➞ instructions ➞ neg
    Backfilled for Firefox  ➞  3 of 3 engines
  157. webassembly ➞ instructions ➞ neg ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  158. webassembly ➞ instructions ➞ not
    Backfilled for Firefox  ➞  3 of 3 engines
  159. webassembly ➞ instructions ➞ or
    Backfilled for Firefox  ➞  3 of 3 engines
  160. webassembly ➞ instructions ➞ or ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  161. webassembly ➞ instructions ➞ pmax
    Backfilled for Firefox  ➞  3 of 3 engines
  162. webassembly ➞ instructions ➞ pmin
    Backfilled for Firefox  ➞  3 of 3 engines
  163. webassembly ➞ instructions ➞ popcnt
    Backfilled for Firefox  ➞  3 of 3 engines
  164. webassembly ➞ instructions ➞ popcnt ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  165. webassembly ➞ instructions ➞ promote_32
    Backfilled for Firefox  ➞  3 of 3 engines
  166. webassembly ➞ instructions ➞ promote_low_f32x4
    Backfilled for Firefox  ➞  3 of 3 engines
  167. webassembly ➞ instructions ➞ q15mulr_sat_s
    Backfilled for Firefox  ➞  3 of 3 engines
  168. webassembly ➞ instructions ➞ reinterpret
    Backfilled for Firefox  ➞  3 of 3 engines
  169. webassembly ➞ instructions ➞ rem
    Backfilled for Firefox  ➞  3 of 3 engines
  170. webassembly ➞ instructions ➞ replace_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  171. webassembly ➞ instructions ➞ rotl
    Backfilled for Firefox  ➞  3 of 3 engines
  172. webassembly ➞ instructions ➞ rotr
    Backfilled for Firefox  ➞  3 of 3 engines
  173. webassembly ➞ instructions ➞ shl
    Backfilled for Firefox  ➞  3 of 3 engines
  174. webassembly ➞ instructions ➞ shl ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  175. webassembly ➞ instructions ➞ shr_s
    Backfilled for Firefox  ➞  3 of 3 engines
  176. webassembly ➞ instructions ➞ shr_s ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  177. webassembly ➞ instructions ➞ shr_u
    Backfilled for Firefox  ➞  3 of 3 engines
  178. webassembly ➞ instructions ➞ shr_u ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  179. webassembly ➞ instructions ➞ shuffle
    Backfilled for Firefox  ➞  3 of 3 engines
  180. webassembly ➞ instructions ➞ splat
    Backfilled for Firefox  ➞  3 of 3 engines
  181. webassembly ➞ instructions ➞ sqrt
    Backfilled for Firefox  ➞  3 of 3 engines
  182. webassembly ➞ instructions ➞ sqrt ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  183. webassembly ➞ instructions ➞ store
    Backfilled for Firefox  ➞  3 of 3 engines
  184. webassembly ➞ instructions ➞ store16_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  185. webassembly ➞ instructions ➞ store32_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  186. webassembly ➞ instructions ➞ store64_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  187. webassembly ➞ instructions ➞ store8_lane
    Backfilled for Firefox  ➞  3 of 3 engines
  188. webassembly ➞ instructions ➞ sub
    Backfilled for Firefox  ➞  3 of 3 engines
  189. webassembly ➞ instructions ➞ sub ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  190. webassembly ➞ instructions ➞ sub_sat_s
    Backfilled for Firefox  ➞  3 of 3 engines
  191. webassembly ➞ instructions ➞ sub_sat_u
    Backfilled for Firefox  ➞  3 of 3 engines
  192. webassembly ➞ instructions ➞ swizzle
    Backfilled for Firefox  ➞  3 of 3 engines
  193. webassembly ➞ instructions ➞ table_copy Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  194. webassembly ➞ instructions ➞ table_fill
    Backfilled for Firefox  ➞  3 of 3 engines
  195. webassembly ➞ instructions ➞ table_get
    Backfilled for Firefox  ➞  3 of 3 engines
  196. webassembly ➞ instructions ➞ table_grow
    Backfilled for Firefox  ➞  3 of 3 engines
  197. webassembly ➞ instructions ➞ table_init Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  198. webassembly ➞ instructions ➞ table_set
    Backfilled for Firefox  ➞  3 of 3 engines
  199. webassembly ➞ instructions ➞ table_size
    Backfilled for Firefox  ➞  3 of 3 engines
  200. webassembly ➞ instructions ➞ throw
    Backfilled for Firefox  ➞  3 of 3 engines
  201. webassembly ➞ instructions ➞ throw_ref
    Backfilled for Firefox  ➞  3 of 3 engines
  202. webassembly ➞ instructions ➞ trunc
    Backfilled for Firefox  ➞  3 of 3 engines
  203. webassembly ➞ instructions ➞ trunc ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  204. webassembly ➞ instructions ➞ trunc_f32_s
    Backfilled for Firefox  ➞  3 of 3 engines
  205. webassembly ➞ instructions ➞ trunc_f32_u
    Backfilled for Firefox  ➞  3 of 3 engines
  206. webassembly ➞ instructions ➞ trunc_f64_s
    Backfilled for Firefox  ➞  3 of 3 engines
  207. webassembly ➞ instructions ➞ trunc_f64_u
    Backfilled for Firefox  ➞  3 of 3 engines
  208. webassembly ➞ instructions ➞ trunc_sat_f32_s Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  209. webassembly ➞ instructions ➞ trunc_sat_f32_u Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  210. webassembly ➞ instructions ➞ trunc_sat_f32x4_s
    Backfilled for Firefox  ➞  3 of 3 engines
  211. webassembly ➞ instructions ➞ trunc_sat_f32x4_u
    Backfilled for Firefox  ➞  3 of 3 engines
  212. webassembly ➞ instructions ➞ trunc_sat_f64_s Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  213. webassembly ➞ instructions ➞ trunc_sat_f64_u Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  214. webassembly ➞ instructions ➞ trunc_sat_f64x2_s_zero
    Backfilled for Firefox  ➞  3 of 3 engines
  215. webassembly ➞ instructions ➞ trunc_sat_f64x2_u_zero
    Backfilled for Firefox  ➞  3 of 3 engines
  216. webassembly ➞ instructions ➞ try_table
    Backfilled for Firefox  ➞  3 of 3 engines
  217. webassembly ➞ instructions ➞ try_table ➞ catch
    Backfilled for Firefox  ➞  3 of 3 engines
  218. webassembly ➞ instructions ➞ try_table ➞ catch_all
    Backfilled for Firefox  ➞  3 of 3 engines
  219. webassembly ➞ instructions ➞ try_table ➞ catch_all_ref
    Backfilled for Firefox  ➞  3 of 3 engines
  220. webassembly ➞ instructions ➞ try_table ➞ catch_ref
    Backfilled for Firefox  ➞  3 of 3 engines
  221. webassembly ➞ instructions ➞ wrap_i64
    Backfilled for Firefox  ➞  3 of 3 engines
  222. webassembly ➞ instructions ➞ xor
    Backfilled for Firefox  ➞  3 of 3 engines
  223. webassembly ➞ instructions ➞ xor ➞ v128 Spec link
    Backfilled for Firefox  ➞  3 of 3 engines

New entries (228)

The entries in this section were not found in BCD on Monday, 20 July 2026, but are now present. These usually do not have any support information attached to them, and often have no corresponding MDN page. Sometimes, entries that appear here also appear in the next section (“Removed BCD entries”) because of a Working Group deciding on a rename.

CSS

  1. css ➞ types ➞ basic-shape ➞ circle ➞ closest-corner
  2. css ➞ types ➞ basic-shape ➞ circle ➞ farthest-corner
  3. css ➞ types ➞ basic-shape ➞ ellipse ➞ closest-corner
  4. css ➞ types ➞ basic-shape ➞ ellipse ➞ farthest-corner

HTTP

  1. http ➞ headers ➞ Permissions-Policy ➞ language-model

WEBASSEMBLY

  1. webassembly ➞ definitions ➞ data
  2. webassembly ➞ definitions ➞ elem
  3. webassembly ➞ definitions ➞ func
  4. webassembly ➞ definitions ➞ table
  5. webassembly ➞ definitions ➞ tag
  6. webassembly ➞ instructions ➞ abs
  7. webassembly ➞ instructions ➞ abs ➞ v128
  8. webassembly ➞ instructions ➞ add
  9. webassembly ➞ instructions ➞ add ➞ v128
  10. webassembly ➞ instructions ➞ add_sat_s
  11. webassembly ➞ instructions ➞ add_sat_u
  12. webassembly ➞ instructions ➞ all_true
  13. webassembly ➞ instructions ➞ and
  14. webassembly ➞ instructions ➞ and ➞ v128
  15. webassembly ➞ instructions ➞ andnot
  16. webassembly ➞ instructions ➞ any_true
  17. webassembly ➞ instructions ➞ avgr_u
  18. webassembly ➞ instructions ➞ bitmask
  19. webassembly ➞ instructions ➞ bitselect
  20. webassembly ➞ instructions ➞ ceil
  21. webassembly ➞ instructions ➞ ceil ➞ v128
  22. webassembly ➞ instructions ➞ clz
  23. webassembly ➞ instructions ➞ const
  24. webassembly ➞ instructions ➞ const ➞ v128
  25. webassembly ➞ instructions ➞ convert
  26. webassembly ➞ instructions ➞ convert_i32x4_s
  27. webassembly ➞ instructions ➞ convert_i32x4_u
  28. webassembly ➞ instructions ➞ convert_low_i32x4_s
  29. webassembly ➞ instructions ➞ convert_low_i32x4_u
  30. webassembly ➞ instructions ➞ copysign
  31. webassembly ➞ instructions ➞ ctz
  32. webassembly ➞ instructions ➞ data_drop
  33. webassembly ➞ instructions ➞ demote
  34. webassembly ➞ instructions ➞ demote_f64x2_zero
  35. webassembly ➞ instructions ➞ div
  36. webassembly ➞ instructions ➞ div ➞ v128
  37. webassembly ➞ instructions ➞ dot_i16x8_s
  38. webassembly ➞ instructions ➞ elem_drop
  39. webassembly ➞ instructions ➞ eq
  40. webassembly ➞ instructions ➞ eq ➞ v128
  41. webassembly ➞ instructions ➞ eqz
  42. webassembly ➞ instructions ➞ extadd_pairwise_i16x8_s
  43. webassembly ➞ instructions ➞ extadd_pairwise_i16x8_u
  44. webassembly ➞ instructions ➞ extadd_pairwise_i8x16_s
  45. webassembly ➞ instructions ➞ extadd_pairwise_i8x16_u
  46. webassembly ➞ instructions ➞ extend
  47. webassembly ➞ instructions ➞ extend16_s
  48. webassembly ➞ instructions ➞ extend32_s
  49. webassembly ➞ instructions ➞ extend8_s
  50. webassembly ➞ instructions ➞ extend_high_i16x8_s
  51. webassembly ➞ instructions ➞ extend_high_i16x8_u
  52. webassembly ➞ instructions ➞ extend_high_i32x4_s
  53. webassembly ➞ instructions ➞ extend_high_i32x4_u
  54. webassembly ➞ instructions ➞ extend_high_i8x16_s
  55. webassembly ➞ instructions ➞ extend_high_i8x16_u
  56. webassembly ➞ instructions ➞ extend_low_i16x8_s
  57. webassembly ➞ instructions ➞ extend_low_i16x8_u
  58. webassembly ➞ instructions ➞ extend_low_i32x4_s
  59. webassembly ➞ instructions ➞ extend_low_i32x4_u
  60. webassembly ➞ instructions ➞ extend_low_i8x16_s
  61. webassembly ➞ instructions ➞ extend_low_i8x16_u
  62. webassembly ➞ instructions ➞ extmul_high_i16x8_s
  63. webassembly ➞ instructions ➞ extmul_high_i16x8_u
  64. webassembly ➞ instructions ➞ extmul_high_i32x4_s
  65. webassembly ➞ instructions ➞ extmul_high_i32x4_u
  66. webassembly ➞ instructions ➞ extmul_high_i8x16_s
  67. webassembly ➞ instructions ➞ extmul_high_i8x16_u
  68. webassembly ➞ instructions ➞ extmul_low_i16x8_s
  69. webassembly ➞ instructions ➞ extmul_low_i16x8_u
  70. webassembly ➞ instructions ➞ extmul_low_i32x4_s
  71. webassembly ➞ instructions ➞ extmul_low_i32x4_u
  72. webassembly ➞ instructions ➞ extmul_low_i8x16_s
  73. webassembly ➞ instructions ➞ extmul_low_i8x16_u
  74. webassembly ➞ instructions ➞ extract_lane
  75. webassembly ➞ instructions ➞ extract_lane_s
  76. webassembly ➞ instructions ➞ extract_lane_u
  77. webassembly ➞ instructions ➞ floor
  78. webassembly ➞ instructions ➞ floor ➞ v128
  79. webassembly ➞ instructions ➞ ge
  80. webassembly ➞ instructions ➞ ge ➞ v128
  81. webassembly ➞ instructions ➞ ge_s
  82. webassembly ➞ instructions ➞ ge_s ➞ v128
  83. webassembly ➞ instructions ➞ ge_u
  84. webassembly ➞ instructions ➞ ge_u ➞ v128
  85. webassembly ➞ instructions ➞ gt
  86. webassembly ➞ instructions ➞ gt ➞ v128
  87. webassembly ➞ instructions ➞ gt_s
  88. webassembly ➞ instructions ➞ gt_s ➞ v128
  89. webassembly ➞ instructions ➞ gt_u
  90. webassembly ➞ instructions ➞ gt_u ➞ v128
  91. webassembly ➞ instructions ➞ le
  92. webassembly ➞ instructions ➞ le ➞ v128
  93. webassembly ➞ instructions ➞ le_s
  94. webassembly ➞ instructions ➞ le_s ➞ v128
  95. webassembly ➞ instructions ➞ le_u
  96. webassembly ➞ instructions ➞ le_u ➞ v128
  97. webassembly ➞ instructions ➞ load
  98. webassembly ➞ instructions ➞ load16_lane
  99. webassembly ➞ instructions ➞ load16_splat
  100. webassembly ➞ instructions ➞ load16x4_s
  101. webassembly ➞ instructions ➞ load16x4_u
  102. webassembly ➞ instructions ➞ load32_lane
  103. webassembly ➞ instructions ➞ load32_splat
  104. webassembly ➞ instructions ➞ load32_zero
  105. webassembly ➞ instructions ➞ load32x2_s
  106. webassembly ➞ instructions ➞ load32x2_u
  107. webassembly ➞ instructions ➞ load64_lane
  108. webassembly ➞ instructions ➞ load64_splat
  109. webassembly ➞ instructions ➞ load64_zero
  110. webassembly ➞ instructions ➞ load8_lane
  111. webassembly ➞ instructions ➞ load8_splat
  112. webassembly ➞ instructions ➞ load8x8_s
  113. webassembly ➞ instructions ➞ load8x8_u
  114. webassembly ➞ instructions ➞ local
  115. webassembly ➞ instructions ➞ local_get
  116. webassembly ➞ instructions ➞ local_set
  117. webassembly ➞ instructions ➞ local_tee
  118. webassembly ➞ instructions ➞ lt
  119. webassembly ➞ instructions ➞ lt ➞ v128
  120. webassembly ➞ instructions ➞ lt_s
  121. webassembly ➞ instructions ➞ lt_s ➞ v128
  122. webassembly ➞ instructions ➞ lt_u
  123. webassembly ➞ instructions ➞ lt_u ➞ v128
  124. webassembly ➞ instructions ➞ max
  125. webassembly ➞ instructions ➞ max ➞ v128
  126. webassembly ➞ instructions ➞ max_s
  127. webassembly ➞ instructions ➞ max_u
  128. webassembly ➞ instructions ➞ memory_copy
  129. webassembly ➞ instructions ➞ memory_copy ➞ multi_memory
  130. webassembly ➞ instructions ➞ memory_fill
  131. webassembly ➞ instructions ➞ memory_fill ➞ multi_memory
  132. webassembly ➞ instructions ➞ memory_grow
  133. webassembly ➞ instructions ➞ memory_grow ➞ multi_memory
  134. webassembly ➞ instructions ➞ memory_init
  135. webassembly ➞ instructions ➞ memory_init ➞ multi_memory
  136. webassembly ➞ instructions ➞ memory_load
  137. webassembly ➞ instructions ➞ memory_load ➞ multi_memory
  138. webassembly ➞ instructions ➞ memory_size
  139. webassembly ➞ instructions ➞ memory_size ➞ multi_memory
  140. webassembly ➞ instructions ➞ memory_store
  141. webassembly ➞ instructions ➞ memory_store ➞ multi_memory
  142. webassembly ➞ instructions ➞ min
  143. webassembly ➞ instructions ➞ min ➞ v128
  144. webassembly ➞ instructions ➞ min_s
  145. webassembly ➞ instructions ➞ min_u
  146. webassembly ➞ instructions ➞ mul
  147. webassembly ➞ instructions ➞ mul ➞ v128
  148. webassembly ➞ instructions ➞ narrow_i16x8_s
  149. webassembly ➞ instructions ➞ narrow_i16x8_u
  150. webassembly ➞ instructions ➞ narrow_i32x4_s
  151. webassembly ➞ instructions ➞ narrow_i32x4_u
  152. webassembly ➞ instructions ➞ ne
  153. webassembly ➞ instructions ➞ ne ➞ v128
  154. webassembly ➞ instructions ➞ nearest
  155. webassembly ➞ instructions ➞ nearest ➞ v128
  156. webassembly ➞ instructions ➞ neg
  157. webassembly ➞ instructions ➞ neg ➞ v128
  158. webassembly ➞ instructions ➞ not
  159. webassembly ➞ instructions ➞ or
  160. webassembly ➞ instructions ➞ or ➞ v128
  161. webassembly ➞ instructions ➞ pmax
  162. webassembly ➞ instructions ➞ pmin
  163. webassembly ➞ instructions ➞ popcnt
  164. webassembly ➞ instructions ➞ popcnt ➞ v128
  165. webassembly ➞ instructions ➞ promote_32
  166. webassembly ➞ instructions ➞ promote_low_f32x4
  167. webassembly ➞ instructions ➞ q15mulr_sat_s
  168. webassembly ➞ instructions ➞ reinterpret
  169. webassembly ➞ instructions ➞ rem
  170. webassembly ➞ instructions ➞ replace_lane
  171. webassembly ➞ instructions ➞ rotl
  172. webassembly ➞ instructions ➞ rotr
  173. webassembly ➞ instructions ➞ shl
  174. webassembly ➞ instructions ➞ shl ➞ v128
  175. webassembly ➞ instructions ➞ shr_s
  176. webassembly ➞ instructions ➞ shr_s ➞ v128
  177. webassembly ➞ instructions ➞ shr_u
  178. webassembly ➞ instructions ➞ shr_u ➞ v128
  179. webassembly ➞ instructions ➞ shuffle
  180. webassembly ➞ instructions ➞ splat
  181. webassembly ➞ instructions ➞ sqrt
  182. webassembly ➞ instructions ➞ sqrt ➞ v128
  183. webassembly ➞ instructions ➞ store
  184. webassembly ➞ instructions ➞ store16_lane
  185. webassembly ➞ instructions ➞ store32_lane
  186. webassembly ➞ instructions ➞ store64_lane
  187. webassembly ➞ instructions ➞ store8_lane
  188. webassembly ➞ instructions ➞ sub
  189. webassembly ➞ instructions ➞ sub ➞ v128
  190. webassembly ➞ instructions ➞ sub_sat_s
  191. webassembly ➞ instructions ➞ sub_sat_u
  192. webassembly ➞ instructions ➞ swizzle
  193. webassembly ➞ instructions ➞ table_copy
  194. webassembly ➞ instructions ➞ table_fill
  195. webassembly ➞ instructions ➞ table_get
  196. webassembly ➞ instructions ➞ table_grow
  197. webassembly ➞ instructions ➞ table_init
  198. webassembly ➞ instructions ➞ table_set
  199. webassembly ➞ instructions ➞ table_size
  200. webassembly ➞ instructions ➞ throw
  201. webassembly ➞ instructions ➞ throw_ref
  202. webassembly ➞ instructions ➞ trunc
  203. webassembly ➞ instructions ➞ trunc ➞ v128
  204. webassembly ➞ instructions ➞ trunc_f32_s
  205. webassembly ➞ instructions ➞ trunc_f32_u
  206. webassembly ➞ instructions ➞ trunc_f64_s
  207. webassembly ➞ instructions ➞ trunc_f64_u
  208. webassembly ➞ instructions ➞ trunc_sat_f32_s
  209. webassembly ➞ instructions ➞ trunc_sat_f32_u
  210. webassembly ➞ instructions ➞ trunc_sat_f32x4_s
  211. webassembly ➞ instructions ➞ trunc_sat_f32x4_u
  212. webassembly ➞ instructions ➞ trunc_sat_f64_s
  213. webassembly ➞ instructions ➞ trunc_sat_f64_u
  214. webassembly ➞ instructions ➞ trunc_sat_f64x2_s_zero
  215. webassembly ➞ instructions ➞ trunc_sat_f64x2_u_zero
  216. webassembly ➞ instructions ➞ try_table
  217. webassembly ➞ instructions ➞ try_table ➞ catch
  218. webassembly ➞ instructions ➞ try_table ➞ catch_all
  219. webassembly ➞ instructions ➞ try_table ➞ catch_all_ref
  220. webassembly ➞ instructions ➞ try_table ➞ catch_ref
  221. webassembly ➞ instructions ➞ wrap_i64
  222. webassembly ➞ instructions ➞ xor
  223. webassembly ➞ instructions ➞ xor ➞ v128

Removed entries (1)

The entries in this section were found in BCD on Monday, 20 July 2026, but are no longer present. The reasons for this removal can be anything from an experimental proposal that was never supported to a property or value being renamed to something else.

WEBEXTENSIONS

  1. webextensions ➞ manifest ➞ offline_enabled